paul ryan did not miss the opportunity to seize on biden's choice of words. >> vice president biden just today said that the middle class over the last four years has been, quote, buried. we agree. of course the middle class has been buried. they're being buried by regulations. they're being buried by taxes. they're being buried by borrowing. they're being buried by the obama administration's economic failures. >> the romney campaign also chimed in on twitter writing agree with joe biden. the middle class has been buried the last four years which is why we need a change in november, #can'tafford4more. >>> later that today in asheville, north carolina vice president biden clarified that the middle class was buried by the policies that romney and ryan supported. see if you're convinced by that recovery. >>> also yesterday, a video was relesioned by the daily caller, featuring then senator barack obama speaking to a group of african-american religious leaders in 2007. they are billing the video as a bombshell labelling it obama's other race speech. the video's publication widely seen as an